thompson



(No Model'.)

v 0. w. THOMPSON. APPARATUS FOR BREAKING 0R CRUSHING STONE, ORE, 6:0. No. 541,399.

Patented June 18, 1895.

"m: Ndimi PETERS 0o mo'm-L'n-Mu vasmumom n c UNITED STATES PATENT OFFICE.

COUR'IENAY \V. THOMPSON, OF LONDON, ENGLAYD.

APPARATUS FOR BREAKING OR CRUSHING STONE, ORE, 81.0.

SPECIFICATION forming part of Letters Patent No. 541,399, dated June 18, 1895.

Application filed August 3, 1894.

To all whom it may concern.-

Be it known that I, COURTENAY WILLIAM THOMPSON, mining-engineer, a subject of the Queen of Great Britain and Ireland, residing at 5 Fair Street, Tooley Street, London, in the county of Surrey, England, haveinveuted certain Improvements in Apparatus for Breaking or Crushing Stone, Ores, or other Hard Substances, of which the following is a specification.

My invention relates to apparatus for breaking or crushing stone, ores and other substances in which the crushing head is made to gyrate within a surrounding casing, the stone or the like being crushed in the space between the said head and casing.

The object of my invention is to construct the apparatus so that it is very efficient in operation and easy of access.

In the accompanying drawings, Figure l is a vertical section of the apparatus; and Fig. 2 is a verticalsection at right angles to Fig. 1, showing the connection between the crusherhead shaft and the shaft by which it is driven. Fig. 3 is a sectional plan taken on the line 3 3 of Figs. 1 and 2.

The crushing head A is secured to the lower end of the crushing head shaft B the upper end of which is connected eccentrically to a shaft 0, driven by any suitable motor.

The crushing head shaft B at a part thereof toward its lower end and between the crushing head A and the upper end is provided with a fulcrum shown as consisting of a spherical part I) mounted in a bearing or socket d in a bracket D which may bridge the casing or opposed crushing surface E. The crushing head A may be conveniently secured to the lower end of the crushing head shaft B, by making the end of the said shaft taper and the hole through the crushing head correspondingly taper and forcing the head tightly onto the shaft by means of a collar 1) driven into a transverse hole 19 made through the projecting end of the shaft B. The 'onnection of the upper end of the crushing head shaft with the driving shaft 0 may be effected by providing the upper end of the said crushing head shaft B with a bush or collar 11 secured between guides c in the lower end of the driving shaft 0, so that by moving the said bush or collar 1) laterally in the said guides c and securing Serial No. 519,366. (No model.)

it in its adjusted position the degree of eccentricity of the attachment between the shafts Band C, and consequently the amplitude of the gyratory movement of the crusher head shaft B and consequently of the crusher head A can be adjusted as required. The means for efiecting the adjustment shown consist of Y liners is at each side of the bush or collar those at the respective sides being of a size or number in accordance with the desired position of the bush or collar and shaft and these are all kept in place by a strap Zwith a projection pressed on the outermost liner by means of a collar m driven through holes in pins n which project on either side of the guides c and over which the strap Z is passed but I do not limit myself to this mode of fastening the parts in position. The crusher head A can also be adj usted vertically relatively to the casing E so that the crushing and discharge space between the two can be regulated. This can conveniently be efiected by carrying the upper end of the driving shaft in a bearing F in a cross piece G which is capable of being raised and lowered in the uprights H by means of screws 01 for example the socket or bearing (1 for the fulcrum b on the crushing head shaft B being also capable of sliding vertically in the bracket D which supports it so that the driving shaft 0 and with it the crushing head shaft B and the crushing head A can be ad justed vertically as desired.

It will be seen that the bush or collar 11 is provided with flanges for retaining it in position vertically in the guides c and that the shaft B is retained in position vertically by the flange b at its upper end. 0 is a collar secured to the shaft 0, to retain it in position in the bearing F.

J J 2 are wheels by which the rotation of the shaft G and consequently the gyratory motion of the crusher head shaft B and crusher head A is obtained from any suitable motor. The wheel J may be mounted on the shaft 0 by a groove and feather connection for instance, so as to allow of the aforesaid vertical adjustment.

I have shown a spherical hearing at the fulcrum b as this is of course the best form but any other hearing which will allow of the necessary movement may be used.

By the arrangement above described, the

parts by which the apparatus is operated are above and entirely clear of the crushing head and easing, which makes these parts easy of access, keeps them free from grit, and they are 5 not restrietedto a confined space. The space beneath the crushing head and casing is free for the exit of the crushed material, and the crushing head and easing being low down, the stone or the like to be crushed has to be ele- Io vated but slightly to be fed into the apparatus and the diiference between the levels of feed and discharge is small.

I elaim In apparatus for breaking or crushing stone I5 01' other material, the combination of a crushingchamber tapering downward and open at the bottom, a crusher head and a shaft to the 

